the "official" part is a piece of clear plastic, which is probably acrylic, which melts around 160C. (it could be something else, but it's transparent and ther

the "official" part is a piece of clear plastic, which is probably acrylic, which melts around 160C. (it could be something else, but it's transparent and there's no reason to make it transparent other than that's what's cheap. and making transparent non-acrylic plastics isn't cheap) wood won't burn at 160C.